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Engine/Transmission/Drivetrain/Performance
The IS 250's 2.5-liter V6 engine delivers 204 horsepower at 6,400 RPM and 185 lb.-ft. of peak torque at 4,800 rpm. The Lexus IS 350's 3.5-liter V6 offers a more potent 306 horsepower at 6,400 RPM ...

Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine from starting if the key has not been previously registered in the vehicle's on-board computer. Never leave the keys insid ...

Alarm
The system sounds the alarm and flashes lights when forcible entry is detected. Close the moon roof and all windows. Stop the engine. The engine immobilizer system causes the indicator light to ...